Tarehe ya muamala ni leo.

Ya is the connector that links the two nouns. In English, it is often translated as of.

So:

• tarehe ya muamala = the date of the transaction

This pattern is very common in Swahili:

• jina la mwanafunzi = the name of the student
• kitabu cha mwalimu = the teacher’s book

The exact form of this connector changes with noun class.

It agrees with tarehe, the first noun, not muamala.

That is an important Swahili rule: in this kind of noun + connector + noun phrase, the connector matches the first noun.

So:

• tarehe ya muamala
• tarehe ya miamala

Even when muamala becomes plural miamala, the connector stays ya because tarehe has not changed.

Ni is the present-tense copula, meaning is in a sentence like this.

So:

• Tarehe ya muamala ni leo = The transaction date is today

It links the subject and the information about it.

In simple identity or description sentences, ni is very common:

• Huyu ni mwalimu = This is a teacher
• Jina lake ni Asha = Her name is Asha

Swahili does not normally use articles like the or a/an.

So tarehe ya muamala can mean:

• the transaction date
• a transaction date

Usually the context tells you which meaning is intended. In this sentence, English would most naturally use the.

Leo means today.

In this sentence, it works as a time expression telling when the date is. Swahili often uses time words directly, without a preposition like on.

So you do not need something like on today. You simply say:

• ni leo = is today

Other common time words are:

• jana = yesterday
• kesho = tomorrow

Yes, you can.

Both are grammatical, but the focus changes a little:

• Tarehe ya muamala ni leo puts the focus on the transaction date
• Leo ni tarehe ya muamala puts more focus on today

English does this too:

• The transaction date is today
• Today is the transaction date

No. Tarehe normally means a calendar date, not a romantic date.

So in this sentence, tarehe clearly means the day on the calendar.

That matters because English date has more than one meaning, while tarehe is more specific.

The plural is miamala.

So:

• muamala = transaction
• miamala = transactions

Example:

• tarehe ya miamala = the date of the transactions

Notice again that ya stays the same because it agrees with tarehe, not with muamala/miamala.

You can change it like this:

• Tarehe ya muamala si leo = The transaction date is not today
• Tarehe ya muamala ilikuwa jana = The transaction date was yesterday
• Tarehe ya muamala itakuwa kesho = The transaction date will be tomorrow

A useful point:

• ni = is
• si = is not
• ilikuwa = was for this noun class
• itakuwa = will be for this noun class

A simple pronunciation guide is:

• Tarehe ≈ ta-RE-he
• ya ≈ yah
• muamala ≈ moo-ah-MA-la
• ni ≈ nee
• leo ≈ LEH-o

A few helpful pronunciation tips for Swahili:

• Vowels are usually pronounced clearly and separately.
• Stress is usually on the second-to-last syllable.
• So muamala is not compressed into one English-like sound; the u and a are both heard: mu-a-ma-la.